Sewing-machine



(No Model.) 2 Sheets-Sheet 1. v J. R. HEBERT. Y

SEWING MACHINE.

No. 268,227. Patented Nov. 28, 1882.

(NoModeL) a Sheetsr-Sheet 2-.

J. R. HEBERT. SEWING MACHINE.

No.268 227. Patented Novyzs, 1882.

differences in construction.

UNITED STATES PATENT OFFICE.

JOSEPH R. HEBERT, OF BROOKLYN, NEW YORK, ASSIGNOR TO ELIAS A.

' WILKINSON, OF NEWARK, NEW JERSEY.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 268,227, dated November 28, 188 2.

Ap lication filed May 6, 1882.

To all whom it may concern Be it known that I, JOSEPH R. HEBERT, of Brooklyn, New York, have invented new and uset'ulImprovements in Sewing-Machines, described in this specification and the drawings thereof.

The invention consists in improvements relating to the mechanism for operating the shuttle. t

Figure 1, Sheet 1, is a front view of one of the improvements. Fig. 2, Sheet 1, is a side view of the same. Figs. 3 and 4, Sheet 1, are detailed views of portions thereof. Fig. 5, Sheet 2, is a front view of the other improvements. Figs. 6, 7, and 8, Sheet 2, are detailed views of the same.

In the form of construction shown in Sheet 1, eccentric A is placed on the driving-shaft B. This eccentric has a rounded face, 0, and turns between shoes D E, having concave faces a a to correspond therewith. The shoe E is supported by a tongue, m, in a groove, 1), in the prong F of the vertical lever G, and the shoe D is supported by a tongue, n, in a groove, 0, in the wedge H, which is adjustable by means. of a slot and set-screw, (I, in the other prong, K, of the fork.

In the usual form of construction it is necessary that the axis L of the vertical lever G the axis, to insure proper action by the eccentric, which heretofore usually has been made flat on the face. This improvement, however, obviates any such necessities, as the vertical lever, though not self-adjusting, has a position in relation to the eccentric, whether the axis of the vertical lever and the faces of the fork thereof be parallel or not, the convex face of the eccentric and the concave faces of the shoes affording ample compensation for slight The shoes are kept in their proper relation to the face of the eccentric to compensate for wear by means of the adjustable wedge.

In the form of construction shown in Sheet 2 an elbow, M, connects the vertical lever G and the horizontal lever W in such a manner (No model.)

as to permit that freedom of movement necessary in transmitting the vibrating motion from one to the other, and which has heretofore usually been accomplished by a ball-and-fork connection. The levers have sockets ff, into which the arms N N of the elbow are inserted, vents g 9 being made into the sockets at their inner ends forthe escape of air and oil and to afford an easy movement to the arms of the elbow. The elbow is preferably made intwo parts, Q P, one having a tongue, 1", and the other a fork, s, or otherwise pivoted together, as at t, so as to have a slight motion, when required, at the angle of the elbow. The sockets are preferably open at one side, and provided with set-screws h h to compensate for wear and to secure the proper adjustment on the arms of the elbow-joint.

The details of construction and operation may be variedfrom that described and shown within the scope of my improvement.

Bearing-plates and adjustable wedges were known when I made this invention; butI devised a combination differing materially there from and especially adapted to the fork of a sewing-machine lever, so as to conveniently take up the wear without displacing the parts.

I claim as my inventionl. The combination, in sewing mechanism, of forked lever G, having prongs F K, the

prong F having groove 1), and the prong K having slot and set-screw d, wearing-shoes l) E, having concave faces a a and tongues n m, adjustable wedge H, having groovec, eccentric A, having rounded face 0, and driving-shaft B, substantially as set forth.

2. The combination, in sewing mechanism, of a forked lever, wearing-shoes, an adjustable wedge, and a round-faced eccentric on a driving-shaft, the shoes being so connected to the forks of the lever as to prevent their lateral displacement and permit their longitudinal motion, substantially as set forth.

3. The combination, in sewing mechanism, with the fork of a lever, of an eccentric rounded across the face, concave wearing-shoes adapted thereto, an adjustable wedge connected to one 'of the shoes by tongue and groove, and to one of the prongs of the fork by a slot and set-screw, adapted to a driving-shaft,

whereby the wearing-shoes can be adjusted to the eccentric, substantially as set forth.

4. The combination, in sewing mechanism, of vertical lever Gr, horizontal lever W, elbowjoint M, having arms N N, tongue 7', and fork s, and adjustable socketsff, having vents g g, substantially as set forth.

5. The combination, adapted to sewing mechanism, of a vertical lever, a horizontal lever, and an elbow-joint having arms entering adjustable sockets in the ends of the levers, the sockets having vents at theirinner ends, substantially as set forth.

6. The combination, in a sewing-machine, of a vertical lever, a horizontal lever, and a distinct elbow-joint of two arms connected to- 

